arraylist methods in java
// Assign to list variable directly with STREAM FILTER METHID
ArrayList<String> filteredColors = (ArrayList<String>) colors.stream().filter(x -> x.contains("o")).collect(Collectors.toList());
// Clone and remove unwanted(TRADITIONAL FILTERING)
filteredColors = (ArrayList<String>) colors.clone();
filteredColors.removeIf(x -> !x.contains("o"));
// Find specific element
colors.stream().filter(x -> x.contains("ora")).findFirst().get();Definition of functions of the ArrayList
ArrayList()
{
int items = 0;
int landex=0;
int *List= new int [items];
}
//Add function
add(int n){
arrayList[landex]=n;
items++;
landex++;
if(items==landex)
{
arrayList=doubleCapa(arrayList, items);
}
}
//deleteLast()
int deleteLast()
{
int num=0;
if(arrayList!=0)
{
numD=arrayList[size];
arrayList[size]=NULL;
if(items<landex*2)
{
arrayList=halfSize(arrayList, landex);
}
}
else
{
cout << "Array contain no element";
}
return num;
}
//Size() functions
int size()
{
int num=0;
for(int i=0;i<arr.length;i++)
{
if(arr[i]!=NULL)
num++;
}
return num;
}
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